Home / 87,411.65-131,145.03-31,250.52

Finding the Fourth Proportional to 87,411.65, 131,145.03 and 31,250.52

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Solution

The fourth proportional to 87,411.65, 131,145.03 and 31,250.52 is: 46,885.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,411.65 : 131,145.03 = 31,250.52 : x
  2. Step 2: Convert to fraction form
    87,411.65/131,145.03 = 31,250.52/x
  3. Step 3: Cross multiply
    87,411.65x = 131,145.03 × 31,250.52
  4. Step 4: Simplify right side
    87,411.65x = 4,098,350,382.92
  5. Step 5: Solve for x
    x = 4,098,350,382.92/87,411.65
  6. Step 6: Final answer
    x = 46,885.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.